Machine for cutting brick or the like



June 18, 19409 STAHL 2,205,313

MACHINE FOR CUTTING BRICK 'OR THE LIKE Filed June 5, 1939 Patented June 18,1940

PATENT OFFICE MACHINE FOR CUTTING BRICK on THE LIKE Ray H. Stahl,

Springfield, Ohio Application June 5, 1939, Serial No. 277,543

'- 4 Claims.

My invention relates to a machine for cutting bricks or the like. i r An important object of the invention is to providea machine of the above mentioned chari acter which is powerful and quick in operation.

for cutting bricks or the like. 1

A further object of the invention is to provide a machine of the above mentioned character having means forsupporting the brick in the desired position, without the use of the hands, prior to cutting. T A further object of the invention is to provide a. machine of the above mentioned character which will cut brickat a right angle to its lon- 5 .gitudinal axis or at an inclined angle with relation thereto. A further object oithe invention is to provide a .machine of the above mentioned character m having an upwardly movable cutter actuated by a treddle. H

. r A further object of the invention is to provide means for mounting one of the opposed blades so that itautomatically adjusts itself with-respect to the surface of the brick which it is to strike. A- further objectof the invention is to provide a machine "of the :above mentioned character having a framework which is simple, strong, and canine readily-attached to a stationary support.

Other objects and advantages of theinvention will be apparent during the course of the following description.

. In-theaccompanymg drawing forming apart of this application and in which like numerals I V are employed to designate like parts throughout '35 thesame, f r

Figure l is a perspective view of a-brick cuttin machineernbodying my invention, Figure 2 is a side elevation of the same, Figure 3.is a-vertical section taken on line 3-3 of Figure 2; and, i

Figure 4 is a horizontal 44 of Figure Z; In the-drawing,-wherein for thepurpose of illustration is shown a preferred embodiment of my inventionythe numeral l0 designates agvertical supportingyframe, including spaced sides. Each side comprisesa pair of vertical angle-irons .H; The angle-irons ii I in each'pair are: spaced, affording guide-ways l2. 'At their upperends, the pairs of angle-irons II are connected by a horizontal .i;angle'-iron 13, having its vertical flange arranged within the passage I2 and its horizontal flange disposed above the pairs of vertical angle-irons. Spacing elements or shims M are provided. The horizontal angle-iron 13 section taken on line is attached to the upper ends of thepairs of angle-irons H by bolts l5 or the like. The angleirons ll ineach pair are further connected near their upper ends by bolts [6 or the'like'. At their 7 lower jendsf the pairs of angle-irons II are conlframe Ill and arranged withinthe guide-ways l2 between the pairs of angle-irons" l is a stationary blade Tor cutter ZLQWhichmaybe held in place by frictional'ngag'ement with the flanges of the angle-irons Il. .'Ihc blade 21 is stationary, and engages at'its upper edge with wedges 22, engagiing beneath the bolts-l6. Wedge 22 .the' stationary blademay'. beadjueted so that 11;;wi11v be horizontal, or sli htly'incline'd, or'the stationary blade maybe slightly vertically "adjusted while; remaining. 1 horizontal. The Wedges 22 ,prevent. the blade from moving. up? wardly when struck by the-brick. .The upper stationaryknife 2l is preferably .shimmed, so that it W111 be I ment with the. p irsof angle-irons l'l.

Ahorizontal-table 211i is provided for supporting the brick, and-this'table is secured upon hor jizontal angle-irons 24, which are bolted at 25 to the pairs of angle-irons .l l- The table .23 .is arranged-a suitable distance below the upper stationaryfbladejl .andthe table has a :slot..26,

forthe passage of a verticallymovable blade, to bedescribed. I

Mounted to be shifted vertically within. the

By drivingin either clamped in place'by'frictional engage guideway I2 is a generally horizontal lower. blade I 2l, which pivotally mountednear its center,

asshown at28 coupling- 2!). .If desired, pins 30 maybe attachedto the movable blade for operation near jand slightly spaced from the pairs of vertical angle-irons ll." These. pins serve to limit the lateral shifting-movement of theblade, but permit the blade to turn upon the. horizontal pivot 28 so-that the blade may U automatically adjust its cutting edge with the inclination of the 'lower surfaceyof the brick. This lower blade v passes upwardly throughthe op'ening'26.;' When the lower blade is gginf the starting lowermost position, it is beneath the upper surface of the table 23, Figure 1. l

The coupling 29 is attached to the upper ends of spaced generally vertical links 3|, by means of a bolt 32, and the coupling 29 is arranged between the links 3|. The links are connected near and beneath the coupling 29 by a horizontal rod 33, passing through openings formed in the links and screw-threaded for receiving nuts 34. The rod 33 operates within the guideways l2. A spacing sleeve 35 is mounted upon the rod 33 between the links 3| and spacing sleeves 36 are mounted between the links BI and the pairs of angle-irons The links 3| are connected between their ends by a rod 31. At their lower ends, the links 3| are pivotally connected at 38 with a treddle 39, arranged near the bottom of the supporting frame ID. This treddle is pivotally mounted upon the supporting frame by a bolt 40. This bolt 40 carries spacing sleeves 4|, as shown. The treddle is formed of spaced bars or straps 42, connected by bolts 43, with a fillerblock 44 arranged between the same. The treddle is moved upwardly by a retractile coil spring 45, attached thereto at 46 and to the supporting frame Ill, at 41. A stop 48 limits the upward movement of the treddle.

The operation of the machine is as follows:

When the operator takes his foot 01? the treddle 39, the spring moves the treddle to the uppermost position and the lower blade 21 is shifted to the lowermost position, beneath the upper sunface of the tab1e'23. The operator then places a brick upon the top of the table 23, inserting the brick between the blades 2| and 21, at the selected position. The blades 2| and 21 are spaced a greater distance than the vertical dimension of the brick, and hence the upper surface of the brick is spaced from the upper blade 2|, when 1 the brick rests upon the table 23 and before the lower blade 21 is elevated. The brick may have its longitudinal axis disposed at a right angle to the blades 2| and 21 or the longitudinal axis of the brick may be inclined with respect to the blades. If desired, a portion of the flange of one of the angle-irons may be suitably cut away to permit of the angular position of the brick or the pairs of flanges may be spaced farther apart. The operator places the brick upon the table which supports the same in the horizontal position and the brick is released by the hands. The operator then steps upon the treddle 39 to force the same down quickly, and this downward movement of the outer end of the treddle swings the forward end of the treddle upwardly. The lower blade 21 moves upwardly through the slot 26 and strikes the brick at the desired line, and throws this brick upwardly to strike against the upper blade 2|. The two blades 2| and 21 thus engage the brick upon its opposite faces, and aligned points, thereby cutting the brick. An important feature of the invention is that the movable blade is arranged in the lowered position, and beneath the upper surface of the table, thereby eliminating the necessity of the operator holding the brick during the cutting action. This frees the hands of the operator and also renders it possible for him to strike the brick a harder blow, during the cutting action.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, what I claim is:

1. In a machine for cutting brick or the like, a vertical supporting frame comprising spaced pairs of angle-irons, the angle-irons in each pair being spaced to provide passages, horizontal angle-irons extending into the passages and attached to the vertical angle-irons and projecting laterally beyond the same for attachment to a stationary support, a table secured to the pairs of angle-irons, a stationary upper blade held within the passages, a vertically movable lower blade operating within the passages, a treddle pivotally connected with the lower end of the supporting frame, a link pivotally connected with the forward end of the treddle, a coupling connected with the link and pivotally connected with the lower blade so that the lower blade may swing vertically with respect to the upper blade.

2. In a machine for cutting brick or the like, a vertical supporting frame comprising spaced pairs of angle-irons, the angle-irons in each pair being spaced to provide passages, horizontal bars extending into the passages and attached to the vertical angle-irons and projecting laterally beyond the same for attachment to a stationary support, a table secured to the pairs of angleirons, a stationary upper blade held within said passages,a vertically movable lower blade operating within said passages, a treddle pivotally connected with the lower end of the supporting frame, and a link pivotally secured to the treddle at its lower end and pivotally connected with the lower blade at its upper end.

3. In a machine for cutting brick or the like, a vertical supporting frame comprising spaced pairs of bars, the bars in each pair being spaced to provide passages, horizontal bars extending into the passages and attached to the vertical bars near their upper and lower ends and projecting laterally beyond the vertical bars for attachment to a stationary support, a substantially horizontal table arranged between the pairs of vertical bars and secured thereto, said table having a slot formed therein, a stationary upper blade arranged above the table and held within' said passages, a lower vertically movable blade arranged within said passages and adapted to move downwardly below the upper surface of the table, and manually operated means to rapidly move the lower blade upwardly so that it is projected above the upper surface of the table to strike the brick and in turn cause the brick to strike against the upper blade.

4. In a machine for cutting brickor the like,

a vertical support beingprovided with guide passages, an upper stationary blade mounted upon the vertical support, a substantially horizontal table mounted upon the vertical support and arranged beneath the blade and having a slot, a

RAY H. STAHL. 

